Add CI: build and push to Docker Hub

Author: Sblrok003

.github/workflows/docker-build.yml

@@ -0,0 +1,33 @@
+name: Build and Push Docker image
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push image to Docker Hub
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: sblrok03/lab2:latest
+
+      - name: Deploy (placeholder)
+        run: echo "Deploying application..."

.idea/.gitignore

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+FROM python:3.9-slim
+WORKDIR /app
+RUN apt-get update && apt-get install -y --no-install-recommends curl vim && rm -rf /var/lib/apt/lists/*
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY app.py .
+RUN useradd -u 1000 -m appuser && chown -R appuser:appuser /app
+USER appuser
+EXPOSE 5000
+ENV FLASK_ENV=production
+CMD ["python", "app.py"]

.idea/inspectionProfiles/profiles_settings.xml

@@ -0,0 +1,9 @@
+from flask import Flask
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    return "Hello from Docker!"
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=5000)

.idea/lab2.iml

@@ -0,0 +1 @@
+Flask==2.0.1